Unit-8

Re: [BUILD] NU VARIMU 436 build & help thread
« Reply #80 on: December 09, 2019, 08:28:57 AM »
Hi Tony,

Yes, there were no ground  connections on the input relays ... I'm the lucky one!
About my headache I used a lot of pain relief pills, so don't worry :)
Only a small tip on the input triodes (6bz7) is recommended to ground pin 9 (internal shield).
News to follow....


Unit-8

Re: [BUILD] NU VARIMU 436 build & help thread
« Reply #81 on: January 17, 2020, 10:27:55 AM »
My NU436 is working and it’s an excellent  compressor. It has a clean and transparent sound but with character.
There’s not much to say about it’s build, apart  to match the tubes (in & out) in order to avoid different levels between the two channels.
Also do not connect the 6bz7 pin 9 to ground as I said earlier, as it generates weird behavior on tubes.
And, if you use an input transformer that is not the Sowter do not jumper R144 A & B  as it’s written on BOM otherwise you short the output transformer.
Thanks guys for this great project!

echoplex

Re: [BUILD] NU VARIMU 436 build & help thread
« Reply #82 on: March 09, 2020, 07:16:27 PM »
Very interested in this project.. not too many people here seem to have done this vari-mu.
Is it possible to get some sound demos?


bernbrue

Re: [BUILD] NU VARIMU 436 build & help thread
« Reply #84 on: March 21, 2020, 04:26:58 PM »
Looks great, Holger. I think I’ll find the time to finish my prototype soon. Thank you for your support!
Bernd


 

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